Date: Tue, 26 Jan 2010 13:28:07 +0100 From: G VM <drums_gvm@hotmail.com> To: <info@deployis.eu> Cc: freebsd-xen@freebsd.org Subject: Re: Kernel panic on FreeBSD 8.0 RELEASE when starting kernel Message-ID: <SNT130-w7A3B28AFC2ADD620A9A59915E0@phx.gbl>
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Deploy IS INFO wrote: > > > G VM wrote: >> Deploy IS INFO wrote: >> > Hi, >> > >> > You can run (in theory) any FreeBSD on a hardware that has HVM >> > support. You can check that with xm info. You can only run FreeBSD 8 >> > as a PV guest with 32bit arch and hvm-pv with amd64. For the pv or >> the >> > hvm-pv mode you have to compile the XEN (for 32bit) or XENHVM (amd64) >> > kernel config. >> > >> > You'll have to install FreeBSD as a hvm guest and after a successful >> > install you may go on with the above mentioned kernels. >> > >> > For pv mode use only 1 vcpu and max 2 for hvm-pv. >> > >> > Regards, >> > Andras >> > >> > G VM wrote: >> >> Justin T. Gibbs wrote: >> >>> On 1/24/2010 4:54 PM, G VM wrote: >> >>> >> >>>> Hi all, >> >>>> >> >>>> I wanted to try running FreeBSD as a guest os. >> >>>> >> >> I followed the instructions on this url. >> >> http://www.ita.com.ua/eng/articles.htm?id=34 >> >> >> >> I am not sure what Xen exactly does. Does it uses the kernel on the >> >> dom0? Or does it both uses the bsd kernel on the dom0 and a modified >> >> kernel on domU? >> >> I do not have a done: >> >> >> >> make buildkernel KERNCONF=/XEN >> >> >> >> Is this necessary? I thought xen support was included in the kernel. >> >> >> >> Do note the instructions I followed. I used those. >> >> / >> >> >> >> >> >> >> >> _______________________________________________ >> >> freebsd-xen@freebsd.org mailing list >> >> http://lists.freebsd.org/mailman/listinfo/freebsd-xen >> >> To unsubscribe, send any mail to >> "freebsd-xen-unsubscribe@freebsd.org" >> > >> > >> # xm info >> host : backupserver >> release : 2.6.18-164.9.1.el5xen >> version : #1 SMP Tue Dec 15 21:31:37 EST 2009 >> machine : x86_64 >> nr_cpus : 2 >> nr_nodes : 1 >> cores_per_socket : 2 >> threads_per_core : 1 >> cpu_mhz : 2210 >> hw_caps : >> 178bf3ff:ebd3fbff:00000000:00000010:00002001:00000000:0 >> 000001f:00000000 >> virt_caps : hvm >> total_memory : 2046 >> free_memory : 512 >> node_to_cpu : node0:0-1 >> node_to_memory : node0:512 >> xen_major : 3 >> xen_minor : 4 >> xen_extra : .2 >> xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 >> hvm-3.0-x >> 86_32p hvm-3.0-x86_64 >> xen_scheduler : credit >> xen_pagesize : 4096 >> platform_params : virt_start=0xffff800000000000 >> xen_changeset : unavailable >> cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-44) >> cc_compile_by : root >> cc_compile_domain : gitco.tld >> cc_compile_date : Wed Nov 11 21:16:28 CET 2009 >> xend_config_format : 4 >> >> So this seems ok. >> >> My dom0 is x86_64. >> Does this mean I have to use hvm-pv (XENHVM) -> FreeBSD amd64 install? >> Or can I run the i386 pv (XEN) on a 64 bit dom0 too? >> Does this also needs a copy of the compiled kernel to the dom0? >> >> Do note that the default 8.0-RELEASE cd does panic (this is part of the >> config, when trying to do a normal install to compile the new kernel >> (that is why I used VMware to compile the kernel)): >> ... >> >> builder = "hvm" >> kernel = "/usr/lib/xen/boot/hvmloader" >> device_model = "/usr/lib64/xen/bin/qemu-dm" >> >> ... >> > > Hi, > > You can any guests arch that fits into the xm info's xen cap line, so > a 32bit pv guest is not a problem for you. We use the following > example config: > > kernel = "/usr/lib/xen/boot/hvmloader" > #kernel = "/path/to/pvkernel" > builder='hvm' > memory = 1024 > name = "FreeBSD8" > vif = [ '' ] > disk = [ 'phy:/dev/volgroup/freebsd-lv-rootfs,hda,w', > 'file:/path/to/8.0-RELEASE-amd64-disc1.iso,hdd:cdrom,r' ] > boot="cda" > vnc=1 > vncpasswd='ihavepassword' > #vcpus='2' > > The commented parts are should be tried only after a succesful install > and of course the amd64 iso could be an i386 also. Under 3.3.1 Xen it > works one a X2270 test server and a x2250 prod server. > > Regards, > Andras > > I used the config you provided and have a 8.0-RELEASE x86 cd. When I boot from the CD the kernel panics: AMD Features2=.... real memory = ... 500MB avail memory = ... 471MB panic: vm_fault: fault on nofault entry, addr: c3253000 cpuid = 0 :S That is the reason I compiled the kernel in VMware as I can install FreeBSD there. BUt then I got the panic I have in the beginning of this mailling list topic. If I am not mistaken I also tried the AMD64 cd and that did fail also. However when using 7.2 it just works ok. Anyone an idea? BTW, thanks so far for your help guys!
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